package com.atguigu.common.valid;

import com.atguigu.common.annotation.ListValue;

import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import java.util.HashSet;
import java.util.Set;

public class ListValueValidator implements ConstraintValidator<ListValue, Integer> {

    private Set<Integer> set = new HashSet<Integer>();

    /**
     * 初始化方法
     * @param constraintAnnotation
     */
    public void initialize(ListValue constraintAnnotation) {
        int[] value = constraintAnnotation.value();
        for (int i : value) {
            set.add(i);
        }
    }

    /**
     * 判断是否校验成功
     * @param value 需要校验的值
     * @param context
     * @return
     */
    public boolean isValid(Integer value, ConstraintValidatorContext context) {
        // set是否包含提交的value值
        return set.contains(value);
    }
}
